package com.xinxing.city.recovery;

import androidx.fragment.app.FragmentManager;

import com.xinxing.city.recovery.utils.MyDialog;

public class Tools {
    private static final double A = 6378245.0;
    private static final double EE = 0.00669342162296594323;
    private static final double PI = 3.14159265358979324;
    private static final double X_PI = PI * 3000.0 / 180.0;
    //简单提示
    public static void logTips(String msg, FragmentManager f){
        MyDialog myDialog = MyDialog.newInstance("提示",msg,"","");
        myDialog.show(f,"MyDialog");
        myDialog.setMyDialogListener(new MyDialog.MyDialogListener() {
            @Override
            public void onPositiveClick() {

            }

            @Override
            public void onNegativeClick() {

            }
        });
    }
    /**
     *
     * @param lat 高德纬度坐标
     * @param lng 高德经度坐标
     * @return String
     */
    public static String convertGCJ2WGS(double lng, double lat) {
        if (outOfChina(lng, lat)) {
            return lng + "," + lat;
        } else {
            double dLat = transformLat(lng - 105.0, lat - 35.0);
            double dLng = transformLng(lng - 105.0, lat - 35.0);
            double radLat = lat / 180.0 * PI;
            double magic = Math.sin(radLat);
            magic = 1 - EE * magic * magic;
            double sqrtMagic = Math.sqrt(magic);
            dLat = (dLat * 180.0) / ((A * (1 - EE)) / (magic * sqrtMagic) * PI);
            dLng = (dLng * 180.0) / (A / sqrtMagic * Math.cos(radLat) * PI);
            double mgLat = lat + dLat;
            double mgLng = lng + dLng;

            double wgsLng = lng * 2 - mgLng;
            double wgsLat = lat * 2 - mgLat;

            return wgsLng + "," + wgsLat;
        }
    }

    private static boolean outOfChina(double lng, double lat) {
        return (lng < 72.004 || lng > 137.8347) || (lat < 0.8293 || lat > 55.8271);
    }

    private static double transformLat(double x, double y) {
        double ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(y * PI) + 40.0 * Math.sin(y / 3.0 * PI)) * 2.0 / 3.0;
        ret += (160.0 * Math.sin(y / 12.0 * PI) + 320 * Math.sin(y * PI / 30.0)) * 2.0 / 3.0;
        return ret;
    }

    private static double transformLng(double x, double y) {
        double ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
        ret += (20.0 * Math.sin(6.0 * x * PI) + 20.0 * Math.sin(2.0 * x * PI)) * 2.0 / 3.0;
        ret += (20.0 * Math.sin(x * PI) + 40.0 * Math.sin(x / 3.0 * PI)) * 2.0 / 3.0;
        ret += (150.0 * Math.sin(x / 12.0 * PI) + 300.0 * Math.sin(x / 30.0 * PI)) * 2.0 / 3.0;
        return ret;
    }


}
